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Finding the Fourth Proportional to 201,661.70, 302,521.35 and 68,548.10

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Solution

The fourth proportional to 201,661.70, 302,521.35 and 68,548.10 is: 102,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,661.70 : 302,521.35 = 68,548.10 : x
  2. Step 2: Convert to fraction form
    201,661.70/302,521.35 = 68,548.10/x
  3. Step 3: Cross multiply
    201,661.70x = 302,521.35 × 68,548.10
  4. Step 4: Simplify right side
    201,661.70x = 20,737,263,751.94
  5. Step 5: Solve for x
    x = 20,737,263,751.94/201,661.70
  6. Step 6: Final answer
    x = 102,831.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.